Process of producing stock food.



il'QSEIH STEHLIN, OF NEW YORK, N. Y.

PROCES$ O PRObUCING STOCK FOOD.

Specification of Letters Patent.

No Drawing. Original application filed March 29, 1911, Serial No. 617,563. Divided and this application filed ma 18, 1911.

To all whom it may concern:

Be it known that I, JOSEPH STEHLIN, a citizen of the United States of America, residing at Manhattan borough, city, county, and State of New York, have invented certain new and useful Improvements in Prooesses of Producing Stock: Food, of which the following is a full, clear, and exact descri tion.

y invention relates to a process for pro ducing animal or stock food and has for its object to utilize what has heretofore been a waste product, so that same may become a valuable article of commerce for use .as a

nutritive food for cattle or other live stock.

In producinganimal or stock food by my improved process I utilize what are known as spent hops, that 'is to say, hops which have been used in breweries in the manufacture of malt liquors and which have here tofore, after such use, been a waste product and of littleor no value oommercially, and

I mix or combine the same with other vegetable food products, such as dried brewers grains, .as hereinafter described. Such waste or spent hops, after having gone through the brewing stages are in a highly saturated or moist condition; and in carrying out my invention, the moist spent hops are preferably first placed in suitable presses to extract excess moisture, whereupon the spent hops are dried and are or may be partially cooked or steamed in suitable apparatus of well known construction, the drying being effected to such an extent that sufficient moisture is eliminated to avoid subsequent decomposition of the prod: uct. I find that drying to an extent whereby about eight per cent. moistureremains, is most satisfactory. After the drying has taken place, the stems of the spent hops are or may be eliminated therefrom, although the removal of the stems is not absolutely necessary. Thereupon the dried spent hops are broken up or may be ground or triturated into powder form, and mixed Serial No. 627,935.

' in suitable proportions with dried brewers grains, malt-sprouts or other vegetable products 'or animal foodstufis, in which condition the product is suitable for use as animal or stock food. Before feeding live erably mixed with water .or other suitable liquid. i

Instead of.treating the spent hops separately, as aforesaid, and after treatment mixing the same with the brewers grains or other vegetable matter, the moist spent hops and the moist brewers grains or the like, may first bemixed together and this mixsaid process.

I have found my improved product to be as a'cheap animal foodstuff.

The subject-matter of the appended claims is a division of an application filed by me March 29, 1911, Serial No. 617,563, for improvements in animal food product and process of producing same.-

- Having now described my invention, what I claim and desire to secure by Letters Patent is A thereupon drying and partially cooking the same, and finally reducing the product to powder form.

Signed at New York cit N. Y., this 16th day of May 1911.

' JOSEPH STEHLIN.

Witnesses:

J. W. HoLBURN, CnAs. S. BENNETT.

Patented Aug. 27, 1912.

ture treated in accordance with the afore- ,a highly nutritive and valuable food for use 1. The herein described process of prostock therewith, the aforesaid food is prefmoist spent hops and moist brewers grains, 

